[arm-allstar] Pi3 Sale, cases, memory, etc.

Doug Crompton wa3dsp at gmail.com
Thu Nov 9 10:58:33 EST 2017


Fred,

 In my case my entire array if Pi's, cable modem, router, switch, and a few
other things are on a 1KVA APC UPS. Other things throughout the house are
on smaller UPS's. However the UPS's would only have to handle about 10
seconds of an outage as I have a 20KW natural gas backup generator. This is
the ideal but I know not everyone can have that. I do recommend a UPS for a
Pi that is in a more critical or remote application but most are not. If
you have a backup of your SD card it is a simple mater to swap cards and
even if you don't getting a system back up from scratch would take about 20
minutes, most of witch is burning the card.


*73 Doug*

*WA3DSP*

*http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*


On Thu, Nov 9, 2017 at 10:21 AM, "Fred Hillhouse via arm-allstar" <
arm-allstar at hamvoip.org> wrote:

> I do like the cheaper choices. I have one for each full sized RPi. The
> RPi0-Ws does not have any cases yet.
>
> I mentioned the case from Newark mainly because someone might find it to be
> what they need. It has a couple of nice features if a power button, desk
> top
> type case, and hard drive mounting is what is needed. Personally I like to
> see options so I can make a good decision based on need rather than cash
> flow.
>
> One question about your repeater racks, how do you handle a power outage? I
> suspect the radio and repeater controllers are fine with dropping power but
> the RPi doesn't like that so much.
>
> Thanks!
>
> Best regards,
> Fred N7FMH
>
> -----Original Message-----
> From: David McGough [mailto:kb4fxc at inttek.net]
> Sent: Wednesday, November 08, 2017 11:00 PM
> To: Fred Hillhouse
> Cc: arm-allstar at hamvoip.org
> Subject: RE: [arm-allstar] Pi3 Sale, cases, memory, etc.
>
>
> These are the cases I'm using--I've got a dozen or more deployed. I'm only
> looking for protection for the PCB in a repeater rack, etc. I leave the end
> cover off the micro-SD card end, to improve ventilation. I like this
> price!   https://www.ebay.com/itm/281977686072
>
> For installations in cabinets, I also always install a small heatsink on
> the
> SoC chip, like this one:  https://www.ebay.com/itm/331971574352
>
> And, add a DC-DC converter similar to this:
> https://www.ebay.com/itm/112473789307
>
> .....This all combines to be a $50 repeater controller that is at least as
> reliable as my legacy embedded PC's! ....At a tiny fraction of the power
> usage, too!
>
> 73, David KB4FXC
>
>
> On Wed, 8 Nov 2017, Fred Hillhouse wrote:
>
> > Need a case? This one looks real nice!
> > http://www.newark.com/element14/pi-desktop/element-14-pi-desktop-haten
> > cl/dp/
> > 05AC3756
> >
> > Best regards,
> > Fred N7FMH
> >
> > -----Original Message-----
> > From: David McGough [mailto:kb4fxc at inttek.net]
> > Sent: Wednesday, November 08, 2017 9:56 PM
> > To: "Fred Hillhouse via arm-allstar"
> > Cc: Fred Hillhouse
> > Subject: Re: [arm-allstar] Pi3 Sale
> >
> >
> > Yes, free shipping is still a big perk!
> >
> > Anyone know of a good source of quality, BULK micro-SD cards?? 16GB,
> > Class
> > 10 preferred....I don't need retail packaging, etc.
> >
> > I've seen the 10-pack offerings on Amazon, like:
> >
> > https://www.amazon.com/gp/product/B00TUEC9U6/
> >
> > Anyone know a better source?
> >
> >
> > 73, David KB4FXC
> >
> >
> >
> >
> > On Wed, 8 Nov 2017, "Fred Hillhouse via arm-allstar" wrote:
> >
> > > Arrow is still shipping free overnight at last look (if total is
> > > >$20). The
> > > RPi3 is $35 but that is still a deal considering most everyone else
> > > includes shipping.
> > >
> > >
> > > -----Original Message-----
> > > From: arm-allstar [mailto:arm-allstar-bounces at hamvoip.org] On Behalf
> > > Of "David McGough via arm-allstar"
> > > Sent: Tuesday, November 07, 2017 11:59 PM
> > > To: "Doug Crompton via arm-allstar"
> > > Cc: David McGough; Doug Crompton
> > > Subject: Re: [arm-allstar] Pi3 Sale
> > >
> > >
> > >
> > > I just got 5 more, that's a bargain!
> > >
> > >
> > >
> > >
> > >
> > > On Tue, 7 Nov 2017, "Doug Crompton via arm-allstar" wrote:
> > >
> > > > If anyone is interested Arrow is selling Pi3's for $29.95 with
> > > > free overnight shipping.
> > > >
> > > > https://www.arrow.com/en/products/raspberrypi3/raspberry-pi-founda
> > > > ti
> > > > on
> > > >
> > > >
> > > >
> > > > *73 Doug*
> > > >
> > > > *WA3DSP*
> > > >
> > > > *http://www.crompton.com/hamradio
> > > > <http://www.crompton.com/hamradio>*
> > > > _______________________________________________
> > > >
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> > > >
> > > > Visit the BBB and RPi2/3 web page - http://hamvoip.org
> > > >
> > >
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> > >
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> > >
> > >
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>
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